The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 22, 2001
Filed:
Dec. 18, 1998
Riccardo Groppo, Roletto, IT;
Giancarlo Casellato, Turin, IT;
Alberto Manzone, Alba, IT;
Alessandro Pincetti, Castiglione Torinese, IT;
C.R.F. Societa Consortile per Azioni, Orbassano, IT;
Abstract
The control device comprises a piloting circuit for the electroactuators and a timing circuit which generates timing signals supplied to the piloting circuit for control of the electroactuators. The piloting circuit has a first and a second input terminal which are connected in use respectively to a first and a second terminal of an electrical energy source, and a plurality of pairs of output terminals, one for each electroactuator; each pair of output terminals comprising a first and a second output terminal, between which a respective electroactuator is connected in use. The piloting circuit comprises a plurality of control circuits, one for each electroactuator, which receive as input the timing signals and are activated selectively by the timing signals themselves. Each control circuit comprises a first transistor which is connected between a respective first output terminal, and, at least in pre-determined operating conditions, the first input terminal of the piloting circuit; a second transistor connected between a respective second output terminal and the second input terminal of the piloting circuit; and a diode which is connected between the respective first output terminal and the second input terminal of the piloting circuit itself.